Study the Feasibility of Zero-Till Happy Seeder under Different Soil Conditions of Andhra Pradesh

The study evaluates the Zero-Till Happy Seeder as an alternative to residue burning for managing paddy stubble and enabling timely sowing of black gram, green gram, and maize under the soil conditions of Andhra Pradesh. It identifies the operational challenges of existing farmer practices—chiefly residue burning due to the narrow sowing window—and tests the Happy Seeder in sandy, clay loam, and black soils. Key performance measures included field efficiency (60–63%), ground wheel slip (3.5–6.5%), draft requirement (4.68–6.64 kN at depths of 6.3–7.2 cm), speed index (0.17–0.25), and germination percentage. Because the machine initially failed to close furrows adequately, the study developed and evaluated improved furrow closers, where the L-type blade (120°) and double-wheel type produced the best furrow coverage.

Economic evaluation showed that the Happy Seeder reduced operational costs to ₹975.24 per hour, compared with ₹1,143 per hour (paddy–maize) and ₹859.60 per hour (paddy–pulse) in traditional methods. The technology delivered major savings: 100% in tillage operations, 6.6–87.5% in fuel, 50–75% in man- and machine-hours, and 33.3% in irrigations, depending on the cropping system. Crop performance (plant height) under the Happy Seeder was comparable to traditional methods, confirming its agronomic viability. The study concludes that the Happy Seeder is feasible for Andhra Pradesh—especially when combined with a rotary slasher after paddy harvest—and offers substantial environmental, labor, and cost advantages.